--- ERROR ---
If a command does not succeed or if an error has occurred during its execution,
the response will be at least: 
                         { error: { mMessage: String } }

--- COMMANDS ---
* activate
  Activates a user account.
	Parameters => userId: String
	Response => { returnedValue: "ok" }
	
* login
  Logs in the specified user with the given password.
	Parameters => username: String, password: String, permanentConnection: "true"/true/"false"/false
	Response => { returnedValue: <sessionId: String> }

* logout
  Logs out the current user.
	Parameters => none
	Response => { returnedValue: "true"/true }

* sessionId
  Gets the current session ID. Note: The session may be created.
	Parameters => none
	Response => { returnedValue: <sessionId: String> }

* getSessionInfo
  Gets all information about the current session
(sessionId, isAnonymousSession, user). Note: the session may be created.
	Parameters => none
	Response => { sessionId: String, anonymous: "true"/true/"false"/false, user: { data: { username: String, email: String, role: "admin"/"user"/String } } }

* userId
  Gets the CDSLogin ID of the current user (which may be anonymous).
	Parameters => none
	Response => { returnedValue: <userId: String> }
	Response(anonymous or unknown user) => { returnedValue: null }
	Response(no session) => { }

* anonymousUserId
  Gets the CDSLogin ID of the anonymous user associated with the current
  session. Note: DOES NOT WORK if a user is currently logged.
	Parameters => none
	Response => { anonymous: "true"/true, returnedValue: <userId: String> }
	Response(not anonymous user or no session) => { anonymous: "false"/false }

* permanentConnection
  Tells whether the connection of the current user is permanent or not.
	Parameters => none
	Response => { returnedValue: "true"/true/"false"/false }

* isSessionAnonyme
  Tells whether a user is connected to the CDS login or not.
	Parameters => none
	Response => { returnedValue: "true"/true/"false"/false }

* username
  Gets the name of the current user (may be "anonymous").
	Parameters => none
	Response => { returnedValue: <username: "anonymous"/String }

* createUser
  Creates a new user with the given data.
	Parameters => username, password, email, firstName, lastName, affiliation, researchDomain, isDataPublic: "yes"/"no"
	Response => { returnedValue: "ok" }

* data [ONLY FOR THE CURRENT USER OR AN ADMIN]
  Gets all information about the specified user. The data of the current
user are returned if no user is specified.
	Parameters[ALL OPTIONAL] => username, userId
	Response => { user: {data: { username: String, email: String, role: "admin"/"user"/String } } }

* askForNewPassword
  Sends a mail to the specified user so that he can reset its password.
	Parameters => username
	Response => { returnedValue: "ok" }

* preferences [ONLY FOR THE CURRENT USER OR AN ADMIN]
  Gets all preferences about the specified user. The preferences of the current
user are returned if no user is specified.
	Parameters[ALL OPTIONAL] => username, userId
	Response => { user: { preferences: { ... } } }

* prettyNames
  Gets the prettyNames of the specified user(s???).
	Parameters => username(s???)
	Response => { prettyNames: { <username: String>: <prettyName: String>, ... } }

* updatePreferences [ONLY FOR THE CURRENT USER OR AN ADMIN]
  Updates a part or all the preferences of the specified user. The given
preferences of the current user are updated if no use is specified.
	Parameters => username[OPTIONAL], userId[OPTIONAL], preferences
	Response => { returnedValue: "ok" }

* changePassword [ONLY FOR THE CURRENT USER OR AN ADMIN]
  Changes the password of the specified user. The password of the current user
is changed if no user is specified.
	Parameters => username[OPTIONAL], oldPassword, newPassword
	Response => { returnedValue: "ok" }

* updateRole [ONLY FOR AN ADMIN]
  Updates the role of the specified user. The role of the current user (MUST BE
AN ADMIN) is updated if no user is specified.
	Parameters => username[OPTIONAL], role
	Response => { returnedValue: "ok" }

* updateStatus [ONLY FOR AN ADMIN]
  Updates the status of the specified user. The status of the current user
(MUST BE AN ADMIN) is updated if no user is specified.
	Parameters => username[OPTIONAL], status
	Response => { returnedValue: "ok" }

* updateEmail [ONLY FOR AN ADMIN]
  Updates the email of the specified user. The email of the current user (MUST BE AN ADMIN) is updated if no user is specified.
	Parameters => username, email
	Response => { returnedValue: "ok" }

* getUser [/!\ ACCESSIBLE BY EVERYBODY /!\]
  Gets all information about the specified user.
	Parameters => username
	Response => { user: { data: { username: "...", role: "...", email: "..." }, preferences: { ... } } }

* usersAsItems [/!\ ACCESSIBLE BY EVERYBODY /!\]
  Gets ALL information about ALL CDS users.
	Parameters => none
	Response => { items: [ { mId: "...", mLastLoginAsLong: <long>, mCreationDateAsLong: <long>, mAnonyme: true/false, mUsername: "...", mPassword: "...", mEmail: "...", mRole: "...", mPreferences: { ... }, mAdminInfo:{...}, mIsDeleteAllowed: true/false, mCreationDate: "...", mStatus: <int>}, ... ] }